Gateway Nanopayments PrimerCircle Developer Notes / score 34 / 0.002400 USDC
Directly explains how Circle Gateway batches EIP-3009 authorizations to enable sub-cent x402 payments without per-payment gas—core to the question.answer evidence
0xed39e693...55b767
paid to cited sources0.004200USDC
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Why do x402 and Circle Gateway make sub-cent source payments possible?
x402 and Circle Gateway make sub-cent source payments possible through two complementary mechanisms: (1) Circle Gateway batches signed EIP-3009 authorizations so x402 payments can clear at sub-cent values without per-payment gas costs, eliminating the transaction fee barrier that normally prevents micropayments; (2) x402 itself, as referenced in the Lepton RFB framework, enables builders to move sub-cent value per article, per call, per second, and per citation, creating the protocol layer for nanopayments. Together, they remove both the technical friction (gas fees via batching) and the payment granularity constraint, allowing autonomous agents to make tiny, automatic, visible payments to creators tied directly to the sources they consume.
citations2
receipts2
reader paid0.000000
agent spent0.004200
latest receipt0x35488ab0...ef4cae
query id0xab7bfe57779a4c88
query hash0x4c56dde18b655c66dfcb37cb5b27e0463607730849810643d9d693de0e2e17b5
answer hash0xed39e69379817173d009dcbe45cb1df2e1a0291a798a697bb9e910424c55b767
created at2026-06-23T14:54:10.795Z
receipt count2
reader payment hashnot reader-paid
source market
Budgeted citation decision
source budget0.006500
agent spent0.004200
remaining0.002300
market sweep2/8
Lepton RFB NotesCanteen Research / score 19 / 0.001800 USDC
Establishes x402 as the protocol enabling sub-cent value movement per article, per call, per citation—the complementary half of the answer.LeptonWeb Build LogLeptonWeb Lab / score 13 / 0.001700 USDC
A builder log showing integration, but not a primary source explaining the mechanism of sub-cent payments.Shadow Float: Spend Before Fundingqdee / score 8 / 0.001500 USDC
Addresses agent funding and spending lines on Arc, but not the specific technical reason x402 and Circle Gateway enable sub-cent payments.Citation Economics for AI AnswersIndie Researcher / score 6 / 0.001200 USDC
Discusses the economics and design of source payments, but not the technical enablers (x402, Circle Gateway) that make sub-cent payments possible.Covenant Account Spend ControlsForum Protocol / score 5 / 0.001500 USDC
Covers spend controls and receipts, but not the technical mechanism enabling sub-cent payments.RSS Distribution SurfaceOpen Feed Maintainers / score 1 / 0.000900 USDC
Relevant to distribution surfaces for pay-per-citation, but does not address why x402 and Circle Gateway enable sub-cent payments.Arc Settlement SketchArc Builder Desk / score 1 / 0.002200 USDC
Describes Arc's settlement layer and finality, but does not explain the specific mechanism of x402 or Circle Gateway's batching for sub-cent payments.paid citations
Sources used
Gateway Nanopayments Primer
Circle Developer Notes / 0.002400 USDCDirectly explains how Circle Gateway batches EIP-3009 authorizations to enable sub-cent x402 payments without per-payment gas—core to the question.Lepton RFB Notes
Canteen Research / 0.001800 USDCEstablishes x402 as the protocol enabling sub-cent value movement per article, per call, per citation—the complementary half of the answer.answer receipts
Payment trail
Circle Developer Notesforum routed / 2026-06-23T14:54:10.795Z
0.0024000x35488ab0...ef4cae
Canteen Researchforum routed / 2026-06-23T14:54:10.795Z
0.0018000xe829c7e1...fee2a7